【摘要】 基于空气劈尖干涉实验中,相邻两个级次干涉条纹所在位置处,在竖直方向上的空气层厚度差为二分之一波长,将移动读数显微镜测得的干涉条纹数据作为横坐标,由干涉条纹级次差确定的空气层厚度差作为纵坐标,进而对劈尖干涉仪中空气薄膜上表面与垂直于棱边平面的交线方程应用最小二乘法进行直线拟合,通过拟合得到的直线方程获取劈尖干涉仪所夹细丝的直径值。实验验证表明,新的实验数据处理方法结果可靠。更多还原

【Abstract】 Based on the principle of the equal thickness interference of air wedge,the air layer thickness difference in the vertical direction between two adjacent interference rings is half wavelength.By taking the data of interference rings measured by moving reading microscope as horizontal coordinates,and taking the air layer thickness differences determined by the order difference of interference rings as longitudinal coordinates,and then the equation of the intersection line of the upper surface of air wedge and the plane perpendicular to the edge can be fitted by the least square method and can be used to obtain the diameter of the filament in the wedge interferometer.The experiment result proves the feasibility of the new data processing method.更多还原